I have two questions :
1) Is it possible to truncate the file content , not to drop the file ? i.e, I want to just delete a file's content only, not to drop the file .
2) I can find the connectd user using command 'w' or 'who' . Now How can I force disconnect a session from the list of 'w'/'who' command ?
I am having problems with scp during a backup operationI added a ps -ef before and after the scp operation used during the backup.The backup is a script to backup a Zimbra ServerI am including the code segment that I am having problems
Code:
# DRCP Section. To scp newly created archives to a remote system
if [ "$DRCP" = "yes" ]
[code]...
If I grep -nr sumthin * in my source code directory, it also spews out very long lines from minified JavaScript or CSS files. I want to get just the first 80 characters per line. For example, a regular grep gives me this:
css/style.css:21:behavior: url("css/iepngfix.htc")
css/style-min.css:4:.arrow1{cursor:pointer;position:absolute;left:5px;bottom:10px;z-index:13;}.arrow2{cursor:pointer;position:absolute;right:5px;bottom:10px;z-index:13;}.calendarModule{z-index:100;}.calendarFooterContainer{height:25px;text-align:center;width:100%!important;z-index:15;position:relative;font-size:15px!important;padding:-2px 0 3px 0;clear:both!important;border-left:1px solid #CCC;border-right:1px ... etc.
But I'd like to get just this instead:
css/style.css:21: behavior: url("css/iepngfix.htc")
css/style-min.css:4:.arrow1{cursor:pointer;position:absolute;left:5px;bottom:
What Linux command can do this?
While thinstation is booting from localdrive then the shows repeatedly error displays after line welcome to thinstation cat: /tmp/ts/session not such file or directory even that i have kept file in loclal derive thinstation.profile/thinstation.conf.user
View 1 Replies View RelatedI use cygwin on Windows7 to open a ssh session to my linux box. When I edit a file with vim, I don't have color, only kind of gray bold. I have colors when I do a ls into my ssh session. I have also colors when I edit files from a ssh session from my linux box to my linux box. I modified the shortcut on Window7 to run cygwin in 256 colors, no effect. Do I need to set an environment variable on my cygwin session ?
On Cygwin and On Fedora when "sshed" from Gygwin : TERM=cygwin
I have logged on to a system with ssh and there is no scp present on both the systems. How to copy a file without using the scp program.
View 3 Replies View RelatedIn a file i have to grep for a particular word and cut 8 characters of that word and replace the last characters with space if it is _1.Eg: HP4350_1..i did grep|cut -c 2-9|but didn't know how to truncate the last two characters if its '_1'.i used tr '[_1] '[ ]'.but it replaced all the characters where there is a 'underscore' and 1 instead of'_1' together.
View 5 Replies View RelatedI want to write a bash script, which will read two strings: firstname and surname, then the script will generate a username. For example: the user name for "Peter Brown" will be brownp.
My questions are:
1. how can I get first letter from variable $firstname?
2. how can I join the two strings together?
I am checking something out in my connection and I just wanted to ask, is there a way to auto-disconnect and connect from the internet.For example say I want to disconnect now and reconnect to the internet in 0.05 seconds, is there any program that does that on Fedora Linux?
View 1 Replies View RelatedI have a long-running process that was started in bash terminal on Debian. Unfortunately it wasn't started inside screen.
Is there a way to disconnect this process from current console and connect to it from screen?
I'm using openvpn under linux OS which is Fedora Core 14, in the folder "/etc/openvpn" i put 5 files which belongs to the network server that I should connect to, files are :
two files with the extension ".crt"
two files with the extension ".key"
one file with the extension ".conf"
Now, when I issue the following command (as root) :
Code:
/etc/init.d/openvpn start
It asks for my username & password to the network server, & after I entered the required authentication information, I successfully login, but I get disconnected automatically after two or three seconds.
- I connect to the network without any disconnection or problems under windows
- I use openvpn version "openvpn-2.1.1-2.fc13.i686"
- there was a bug in my OS "Fedora core 14" which is that I cannot activate or deactivate any ethernet cards, which solved by disabling NetworkManager in all run levels
- I disabled iptables
- I disabled selinux
- I got this error in /var/log/messages file when I disconnect from the openvpn network "
Jan 15 21:45:15 ViRuS openvpn[4143]: script failed: could not execute external program
Jan 15 21:45:15 ViRuS openvpn[4143]: Exiting
Jan 15 21:45:15 ViRuS avahi-daemon[1494]: Withdrawing workstation service for tun0.
- I couldn't find the file called "/etc/openvpn/update-resolv-conf"
I installed Fedora Linux and I am using GNOME. I've created a vpn connection and is connected to the server without problem (Please see attached photos); But after being connected, Upon opening the site ,Vpn will automatically disconnect.
View 1 Replies View Relatedi have installed ubuntu 11.04 linux by wubi (windows 7 ultimate is the other operating system). after some logins it started disconnect from internet.
View 11 Replies View RelatedIf I ssh to a remote machine and then lose internet connectivity, the session freezes. I can't control-c or otherwise abort and go back to my local xterm or terminal prompt but if I wait several minutes it will do so.
There must be some way to force it to abort the remote ssh session when connectivity is lost. I'm on a Mac but I believe this happens on cygwin or linux as well.
I've just started experimenting with SSH tunnels. I wanted a way to connect to MySQL on our website VPS but wanted the connection encrypted rather than just using PHP's mysql_connect() function and connecting to the remote IP. This seems to be working great. I'm also looking into autossh to make sure that the tunnel gets reconnected when it drops.is there a command/utility that can list the currently active SSH tunnels? Be great if there was a way of terminating an active tunnel through a command as well. Or is it a case of manually digging through the process list and killing the specific PID like I have been?
View 1 Replies View RelatedI'm thrilled using wicd to connect to wireless networks. But when I suspend my laptop using the special keys, I just want to disconnect from wireless without having to use any kind of GUI or curses user interface. It says in the documentation that wicd works by sending DBUS messages, so presumably it's possible to write a command that talks to the daemon directly.But I can't figure out how.Does anybody know by means of what shell command I can tell the wicd daemon to disconnect me from my wireless network?
View 2 Replies View RelatedI am using tcp for data transmission between 2pcs running linux.During transmission, I have noticed that if I unplug the network cable and reinsert it quickly,connection is not lost(same as i expect)and the sender start to resend the packet after 5s(what i expect is that network packets sent immediately after quick physical disconnect and reconnect).My question is can i reduce 5s to 0s(resend immediately after network cable reconnect)?Any parameters(tcp rto,txqueuelength,..) can be modified to achieve this condition?
View 10 Replies View RelatedInfo about session timeout.
I use tmout = 15 min in my /etc/profile (along with readonly tmout). i have some issues i need to address, looking for ideas.
1. what is considered a idle "session" ?
2. if i & a process to the background and do nothing is this a idle session?
3. if user uses su to a higher level, are there now two sessions? is the tmout for user suspended until su user time outs or leaves su session?
4. i have some users who will run long sql queries. is there a workaround to have the session remain active until process has finished?
cnee makes xnee session file .xns. In that file, each line has 9 numbers. What does each number mean?
I have xnee 3.19. I looked in this pdf file, but could not find the answer.
XWindow System Protocol, XConsortium Standard, XVersion 11, Release 6.8
i want to let client download file using apache only!it will tell apache generate a session and let client download the file using that session!it that possible? what method or module should i use?
View 1 Replies View RelatedI'd like to use screen to execute a file with a certain session name instead of just numbers... or at least have a more permanent name, I'd like to be able to use it all in one command though. So I can put it into a script.Also: is there a way I can remove or change what comes up at the debian login screen so instead of debain 5.0 I can make it say something else? Also when I login the message that comes up is a little annoying, is there a way I could remove or change that too?
View 7 Replies View RelatedI have broken my MBR and can now only enter 9.10 with the ubuntu start up cd.when i boot through he ubuntu live cd.I can see my mounted drive with all my files however i do not have the permissions to open or copy some of my files( music, films, pics) . id like to do this so i can transfer all my files to an external HDD and reformat start all over again.error when trying to open files.You do not have the permissions necessary to view the contents of.
View 1 Replies View RelatedI recently borked my video driver with a series of upgrades and found my system booting to the TTY with no access to the desktop, graphical login, or even X. I spent some days troubleshooting the problem and experimenting with possible fixes. I found myself wishing for some way to copy and paste from the TTY, or at least log all input and output to a file.
Code:
# bash 2>&1 | tee /tty-session.log
hypothetically speaking, can i write a script in which a telnet session is opened and then some more commands are forwarded to that session?
View 4 Replies View RelatedI have a very bad attempt at hashing the components of an tcp session to assign/locate the session in a hash table bucket. I am pretty sure that it has a very high collision rate and when there are a very large number of tcp sessions my application is having to search a long linked list to find the session within the bucket.
All the hashing functions I have found take a single string input where I need to input several integers and hash them into a single result. My guess is that any real hashing function is going to produce better results than what I am currently doing.
[Code]...
I'v installed wmctrl to have a terminal on desktop and I'v configure it with a script I'v found online.I'v add the script to startup menu interface from xfce (I don't know the us name cause I'v it version on system language), when I shutdown I'v save the session, and on the next log in seems that it is run twice, so if I disable the save session button when I log of but in that case it run in the previous status (dir/position)and I want that it run from startup menu from script file....so when I save the session where it save the status??...how can I skip that it run twice with the script running at startup???
#! /bin/bash
xfce4-terminal --hide-menubar --hide-borders --hide-toolbars --title=descon && wmctrl -r descon -e 0,90,10,500,500 && wmctrl -r descon -b add,sticky,below && wmctrl -r descon -b add,skip_pager,skip_taskbarFirst xfce4-terminal
im unable to connect via nxclient to my remote desktop when i try i get this in the log
Code:
Can't open /var/lib/nxserver/db/running/sessionId{F83992670669DE66AABE321BB44AD3E5}: No such file or directory. mv: cannot stat `/var/lib/nxserver/db/running/sessionId{F83992670669DE66AABE321BB44AD3E5}': No such file or directory the hard drive is not full and i have tried restarting nxserver through putty + hard boot
Is there a way (In the terminal or script file) to change the session during login? The login screen I have in Ubuntu 10-10 only allows for name and password, no other options. Is there a way to change the login screen? I downloaded some new login screens but don't know how to change the current gnome.desktop session to something else and I DON'T want to get stuck in another login "Twilight Zone"
View 4 Replies View RelatedAs far as I know, mysql has several configuration files e.g. /etc/my.cnf, ~/.my.cnf etc. But I mainly focus on /etc/my.cnf to set up global variables.
My questions are:
1/ Global variables and session variables, which one of them take precedence? 2/ How to modify session variables using option file so that when clients connect to mysql server, the session variable settings would be applied... According to mysql document, I can do this using SET statements but I prefer to do this using configuration file. Global variables settings can be done using /etc/my.cnf but session variables settings configuration files are nowhere to be found.
Is there a session manager I can use with 10.10? I would like to try Openbox but am not sure how to select it as a startup session. I would like to be able to choose between kde, gnome and openbox.
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